Composite metal beam or column.



No. 65I,368. Patented lune I2, |900.

J. LANz.

MPSH'E' METAL BEAM 0R. COLUMN.

(Application med nu. 12, 1900.) (No Model.) 2 Sheets4-Sheet .V

wl'rNEssEs YH: Nomus Perzns cul. moro-Lunga, wNmm'oN. b. c.

Patented lune l2, |900.

J. LANz.

COMPOSITE METAL BEAM OR COLUMN.

(Appliaeion med Jan. 12, 1900.)

2 Sheets-Sheet 2.

(No Model.)

WITNESSES INVENTOR TH: cams venas ca. Pnoramwo.. wAsnmomN, o c..

UNITED STATES f met.

PATENT JOHN LANZ, OF PITTsBURc, PENNSYLVANIA, AssIGNoR TO MARY c. LANz,

^ OF SAME PLACE.

COMPOSITE METAL BEM OR COLUMN.

VSPECIFICA'IJION forming partof Letters Patent No. 651,368, dated J' une 12, 1900. Application filed January 12, 1900. Serial No. 1,204. (No model.)

Alo all whom, it may concern:

Be it known that I, JOHN LANZ, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Composite Metal Beams or Columns, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part Of this specification, in which- Figure l shows in side elevation a composite metal bridge-beam constructed in accordance with my invention. Fig. 2 is an end View of the original form Of one of the metal pieces of which the column iscomposed. Figs. 3, 4, and 5 are cross-sections, on a larger scale, on the lines III III, IV IV, and V V of Fig. l, respectively. The figures on Sheet 2 showa modified construction. Fig. 6 is a side elevafion of a composite column embodying my invention. Fig. 7 is an end view Of one of the pieces of the column in its original shape. Figs. 8, 9, and l0 are horizontal cross-sections on the lines VIII VIII, IX IX, and X X, respectively, of Fig. 6, but on a larger scale.

The object of my invention is to provide a composite metal beam, brace, or column for use in bridge construction, buildings, che.,

which shall be tapering or Of varying diameter at different pointsof its length.

Referring to Sheet l of the drawings, in making my improved beam or column I take a number of metal platesor beams 2, 3, 4, and 5, which may consist either of fianged structural shapes or of unflan ged metal'plates, and the same being in angle form they are set with their angles in proximity and their fianges B B abutted against each other, preferably in line with radii of the beam or column and riveted together, as at O C, so as to constitute the composite beamsshownin Figi. In order to taper such column Or beam, its elements 2 3 4 5 are shaped by pressing or Otherwise so that the port-ions of the flanges B B which come in contact and through which the rivets pass vary in Width comformably to the taper desired. The consequence is that the interior space D of the column Or beam also varies in size, and the greater this space the` greater will be the diameter of the composite column or beam. I am therefore enabled from metal pieces or plates of uniform size to make beams or columns having any desired taper or diameter or variation of dimensions at different points.

They maybe made tapering from the bottom the particular use for which it is intended 6o and for making it highly Ornamental in ap pearance when desired. y

In the figures on Sheet 2 of the drawings I show a column made of six metal plates 2' 3 4 5 6 7', which, as shown in Fig. 7, are origi- 65 nally unlianged, but which are pressed into angular form and are assembled with their flanges B B in contact and connected by rivets C C', as above explained with reference to the figures on Sheet I. By varying the width of the fianges B the column is made of tapering-form.

Within the scope of my invention as defined in the claims many changes may be made by the skilled mechanic, since l. A composite column, brace, or beam, made up of metal pieces of uniform width and angular form, having meeting flanges which are fastened together, said meeting flanges being varied in width at different points to vary the diameter of the column; substantially as described.

2. A composite metal beam or column made up of four pieces, 2, 3, 4, 5, of uniform Width and angular form set with theirangles in proximity to each other and With their flange portions fastened together, said flange portions being varied in width to impart to the beam or column varyin g diameters at different points; substantially as described.

3. A composite column, brace or beam made up of metal pieces of uniform width formed with suitable angles, having riveted flanges lying in a radius from the center of the column, said parallel flanges lbeing varied in width to conform to the taper or diameter Of the column desired at any point of its length; substantially as described.

In testimony whereof I have hereunto set my hand.

y A JOHN LANZ. lVitnesses:

H. M. OORWIN,

GEO. B. BLEMING.

lOO 

